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‘PHP: Hypertext Preprocessor’, widely known as PHP, is a scripting language that runs on web servers. It is mostly used to create dynamic pages that interact with databases, like social networks and online forums.
When a user requests a page containing a PHP file, the site’s server processes and outputs it as plain HTML. This way, the source code is safe from prying eyes.
In web development, PHP can perform various tasks:
Outside of the web context, PHP has several uses.
For instance, PHP scripts can be executed locally as long as a PHP parser is installed on your computer. Use a PHP script to process text files, clean out directories, or modify local files.
Creating desktop applications is also possible with PHP. However, it requires PHP extensions like PHP-GTK and WXPHP.
Using PHP presents several advantages:
Dynamic pages are those that change based on the request made. For example, a blog article page changes as users add more comments, and the homepage of your Facebook account is always updated with the latest posts.
Here’s how PHP displays dynamic web pages: